Google Will Send Prototype AI Chips to Low Earth Orbit for First Suncatcher Flight

Overview

• Google plans to fly a Suncatcher prototype next week on SpaceX’s Transporter-18 rideshare in partnership with Planet Labs to collect on-orbit performance data.
• The satellite will carry Google TPUs (tensor processing units, the company’s AI chips) to evaluate how they survive launch forces, radiation-induced bit flips and vacuum thermal conditions.
• Engineers will test a space-facing cooling design that uses heat pipes and radiators because air-based cooling does not work in a vacuum.
• Google previously ran ground TPU AI workloads at UC Davis and says this flight is focused on failure-mode data and hardware behavior in space rather than running a production orbital data center.
• The company plans two follow-up satellites in 2027 to trial high-bandwidth laser links for networking compute nodes, but experts say full commercial orbital data centers remain years away because of launch costs, engineering limits and satellite production bottlenecks.